About The Cover

COVER A flexible organic-inorganic perovskite solar cell can achieve high power conversion efficiencies. This special issue highlights applications of materials that adopt the perovskite mineral structure; these include luminescent nanoparticles and catalytic materials for high-temperature fuel cells and other uses in energy and pollution control. The importance of perovskite minerals in Earthâ€™s mantle is also explored. See page 732.
Photo: Ken Richardson